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Filtering by: Committee Member Lajtha, Kate Remove constraint Committee Member: Lajtha, Kate Decade 2010-2019 Remove constraint Decade: 2010-2019

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Sea-Salt Impacts On Nutrient Cycling In Oregon Coastal Soils

Creator:

Aleman, Ruben

Abstract:

Sea-salt aerosols (SSA) impact the cycling of nutrients within coastal soils, including the mobility of dissolved organic carbon (DOC) and ammonium, denitrification, and litter decomposition. These aerosols are formed during tumultuous weather in the open ocean and are transported and deposited inland by wind. Soils closer to the ocean are...

Resource Type:

Masters Thesis
A Study of Urban Vegetable Garden and their Soils in Corvallis and Portland, OR

Creator:

Nelson, Michael, II

Abstract:

Urban agriculture (UA) is defined as the production of food crops or livestock within urban areas. Despite its popularity in the United States, research into UA systems suffers from a general underrepresentation of commercial urban systems. As a result, urban growers often have unique technological needs that are unmet by...

Resource Type:

Masters Thesis
Artificial means of distinguishing smooth-line map unit boundaries : an examination of Oregon soil survey maps

Creator:

Sun, Yulin

Abstract:

Soil is a complex living system with high heterogeneity, which makes locating soil map boundaries a challenge. In traditional soil survey, the placement of soil map boundaries relies largely (at least initially) on identifying the soil-forming factors of biota and topographic relief through stereo aerial photo pairs. Future soil survey...

Resource Type:

Masters Thesis
Response of Soil Temperature, Moisture, and Respiration Two Years Following Intensive Organic Matter and Compaction Manipulations in Oregon Cascade Forests

Creator:

Gallo, Adrian Carlos

Abstract:

Forest soils contain a substantial portion of global terrestrial carbon stores. Forest management can influence the soil carbon pool and how soil organic matter functions. The long-term productivity of forests is an ongoing goal where land managers utilize biomass and timber. A site-specific understanding of intensively managed forests can ensure...

Resource Type:

Masters Thesis
Non-Destructive Detection and Monitoring of Durability Issues in Wood Panels under Accelerated-Weathering

Creator:

Laleicke, Paul Frederik

Abstract:

Many wood composites are known to poorly resist the effects of moisture and temperature extremes over time. Degradation of adhesive bonds, irreversible thickness swell and dimensional instability result in a decrease of properties and a possible failure of the material. Accelerated weathering has become an essential tool for assessment of...

Resource Type:

Dissertation
Hydrologic and Land Cover Effects on Sources and Fate of In-Stream Fluorescent Dissolved Organic Matter

Creator:

Lee, Baek Soo P.

Abstract:

Dissolved organic matter (DOM) is a critical component of the carbon cycle linking terrestrial and aquatic ecosystems. Although many factors influence DOM fluxes and quality in rivers, controls on DOM compositions in catchments of the western U.S. are poorly understood. UV and fluorescent spectroscopy is a simpler, faster, and less...

Resource Type:

Dissertation
Seasonality as a driving factor of decomposition pathways in both meadows and forests : an exploration across a gradient of climate in Oregon

Creator:

Colby, Samantha E.

Abstract:

Soil food webs process the majority of terrestrial carbon, and influence overall ecosystem function. A primary distinction among soil food webs is based on fungal versus bacterial pathways of decomposition; these lead to fundamentally different soil function, and are expected to differ in dominance between meadows and forests. This assumption...

Resource Type:

Masters Thesis
Wood-adhesive bondline analyses with micro x-ray computed tomography

Creator:

Paris, Jesse Loren

Abstract:

There is no doubt that adhesive penetration plays an important role in wood bondline joint performance and durability; yet, to date there is no direct experimental evidence linking penetration depth with bond performance. This is, in part, because adhesive penetration is commonly assessed with various 2D microscopy techniques that are...

Resource Type:

Dissertation
Functional profiles of soil microbial communities in second-growth Douglas-fir forests of the Pacific Northwest

Creator:

McGinnis, Megan L.

Abstract:

Forests are one of the largest repositories of terrestrial C. Understanding factors that drive organic matter transformations and nutrient efflux from these systems is therefore highly important. Temperate forests are of particular significance due to the large fraction of C that is stored below ground in the soil. Characterizing nutrient...

Resource Type:

Masters Thesis
Dose-effects relationships in non-human biota : development of field sampling, dosimetric and analytic techniques through a case study of the aquatic snail Campeloma decisum at Chalk River Laboratories

Creator:

Ruedig, Elizabeth B.

Abstract:

In the last decade regulatory bodies have begun to implement standards to protect populations of non-human biota (NHB) from the consequences of radiation exposure. This is a departure from previous regulatory frameworks which were concerned only with protecting man. The implementation of these new standards has started an ongoing discussion...

Resource Type:

Dissertation

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Academic Affiliation

Crop and Soil Science4
Wood Science and Engineering3
Botany and Plant Pathology1
Forest Engineering Resources and Management1
Geosciences1
more Academic Affiliations »

Advisor

Kamke, Frederick A.2
Myrold, David D.2
Campana, Michael E.1
Gupta, Rakesh1
Hatten, Jeff1
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2011 to 2019

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Committee Member

Lajtha, Kate[remove]13
Kleber, Markus2
Adams, Paul W.1
Bond, Barbara1
Bottomley, Peter J.1
more Committee Members »

Creator

Aleman, Ruben1
Brewer, Elizabeth Ann1
Colby, Samantha E.1
Gallo, Adrian Carlos1
Hatcher, Kendra L.1
more Creators »

Contributor

Langellotto, Gail A.1

Date

Date range begin – Date range end

Current results range from 2010 to 2018

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Decade

2010-2019[remove]13

Degree Field

Soil Science4
Wood Science2
Botany and Plant Pathology1
Civil Engineering1
Geography1
more Degree Fields »

Degree Level

Master's7
Doctoral6

Degree Name

Master of Science (M.S.)7
Doctor of Philosophy (Ph.D.)6

Language

English [eng]13

License

All rights reserved13

Location

Oregon, Oregon, United States, (Administrative Boundary)1

Non-Academic Affiliation

Oregon State University. Graduate School11

Peer Reviewed

No13

Resource Type

Masters Thesis7
Dissertation6

Rights Statement

In Copyright13

Subject

Adhesives -- Imaging1
Biodegradation -- Oregon1
Campeloma -- Radioactive contamination -- Ontario1
Carbon cycle (Biogeochemistry) -- Northwest, Pacific1
Digital soil mapping -- Oregon1
more Subjects »

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